fix typho in installKubernetesControl

Change-Id: Ia580af07843f7d8307fe9e866290faee92f3beab
diff --git a/src/com/mirantis/mk/Orchestrate.groovy b/src/com/mirantis/mk/Orchestrate.groovy
index 111bc56..c7c647b 100644
--- a/src/com/mirantis/mk/Orchestrate.groovy
+++ b/src/com/mirantis/mk/Orchestrate.groovy
@@ -251,7 +251,7 @@
 }
 
 
-def installKubernetersControl(master) {
+def installKubernetesControl(master) {
     def salt = new com.mirantis.mk.Salt()
     // Install Kubernetes pool and Calico
     salt.runSaltProcessStep(master, 'I@kubernetes:master', 'state.sls', ['kubernetes.master.kube-addons'])